Rainier City Reservoir
Key Takeaway
Rainier City Reservoir is classified as significant hazard in Oregon. It was completed in 1954 and is 72 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 25 ft (taller than 43.9% in OR) |
| Dam Length | 147 ft |
| Dam Type | Timber Crib |
| Max Storage | 14 acre-ft |
| Normal Storage | 14 acre-ft |
| Surface Area | 1 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 0 cfs |
| Year Completed | 1954 (72 years old) |
| NID ID | OR01385 |
Safety Information
No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.
Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?
Ownership
CITY OF RAINIER
Local Government
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Low HazardFrequently Asked Questions
What is the hazard classification of Rainier City Reservoir?
Rainier City Reservoir is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.
Who owns and operates Rainier City Reservoir?
Rainier City Reservoir is owned by CITY OF RAINIER (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Rainier City Reservoir built?
Rainier City Reservoir was completed in 1954, making it 72 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.
What is the primary purpose of Rainier City Reservoir?
Rainier City Reservoir serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Rainier City Reservoir?
Rainier City Reservoir has a dam height of 25 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.
When was Rainier City Reservoir last inspected?
Rainier City Reservoir was last inspected on October 14, 2020. Inspection dates indicate when a formal review occurred, not the results of that inspection.